Abstract

ZnO/palygorskite nanocomposites were facilely synthesized as antibacterial agent by a hydrothermal method using different types of surfactants including sodium dodecyl sulfate, polyvinyl pyrrolidone and cetyltrimethylammonium bromide. The nanocomposites were characterized by Fourier transform infrared spectroscopy, X-ray diffraction field emission scanning electron microscopy, transmission electron microscope, energy dispersive spectrometer, Brunauer–Emmett–Teller analysis and zeta potential. The results showed that the morphologies and antibacterial properties of ZnO/palygorskite nanocomposites could be controlled by changing the types of surfactants. The minimum inhibitory concentration of ZnO/palygorskite nanocomposites prepared with sodium dodecyl sulfate against E. coli was 1.5 mg/mL, while it was 0.5 mg/mL for ZnO/palygorskite prepared with cetyltrimethylammonium bromide against S. aureus. The experimental results suggested that the ZnO/palygorskite nanocomposites might be served as a potential antibacterial agent in animal feeding.

Graphical Abstract

中文翻译：

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不同类型表面活性剂制备ZnO /坡缕石纳米复合材料及其抗菌活性

摘要

使用不同类型的表面活性剂（包括十二烷基硫酸钠，聚乙烯吡咯烷酮和十六烷基三甲基溴化铵）通过水热法轻松合成了ZnO /凹凸棒石纳米复合物作为抗菌剂。纳米复合材料的特征在于傅立叶变换红外光谱，X射线衍射场发射扫描电子显微镜，透射电子显微镜，能量色散谱仪，Brunauer-Emmett-Teller分析和ζ电位。结果表明，改变表面活性剂的种类可以控制ZnO /凹凸棒石纳米复合材料的形貌和抗菌性能。十二烷基硫酸钠制备的ZnO /坡缕石纳米复合材料对大肠杆菌的最小抑菌浓度鲸蜡基三甲基溴化铵制备的ZnO /坡缕石对金黄色葡萄球菌的ZnO /坡缕石的含量为1.5 mg / mL，而其为0.5 mg / mL 。实验结果表明，ZnO /坡缕石纳米复合材料可作为动物饲料中潜在的抗菌剂。

图形概要